the subatomic particles that are lost gained or shared in chemical bonds are called
A valence electrons
B protons
C atoms
D neutrons
A valence electrons
an atom is electrically neutral because
a neutrons balance the protons and electrons
b nuclear forces stabilize the charges
c the number of protons and electrons are equal
d the number of protons and neutrons are equal
c the number of protons and electrons are equal
the nucleus of an atom has all of the following characteristics except that it
A is positively charged
B is very dense
C contains nearly all of the atoms mass
D contains nearly all of the atoms volume
D contains nearly all of the atoms volume
atoms of elements in the same group of the periodic table share the same
a number of energy levels
b number of valence electrons
c atomic numbers
d atomic masses
b number of valence electrons
life can exist under frozen surfaces in polar because seas because
life can exist under frozen surfaces in polar seas because of several reasons:
1. Liquid water beneath the frozen surface: Even though the surface may be frozen, there can still be liquid water underneath. This liquid water provides a suitable environment for various organisms to survive.
2. Thermal insulation: The ice acts as a thermal insulator, helping to maintain a stable temperature beneath the frozen surface. This provides a more favorable environment for life to exist.
3. Protection from harsh conditions: The frozen surface provides protection from extreme weather conditions, such as strong winds and storms. This allows organisms to survive in relatively stable and protected environments.
4. Nutrient availability: Nutrients can be trapped or suspended in the water beneath the frozen surface. These nutrients can support microbial life and provide a food source for larger organisms.
5. Adaptations of organisms: Some organisms in polar regions have developed adaptations to survive in frozen environments. They may have antifreeze proteins to prevent ice formation in their cells or mechanisms to withstand extreme cold temperatures.
Overall, the frozen surfaces in polar seas offer unique habitats that can support diverse forms of life, even in extreme conditions.
when placed in water oil does not dissolve and stays separate this means oil is ___ and ____
This means that oil is immiscible and hydrophobic.
When placed in water oil does not dissolve and stay separate this means blank and blank
This means that oil is insoluble and immiscible in water.
The most single important element necessary for life that makes up every Macro Molecule is a hydrogen B nitrogen C carbon D oxygen
C carbon
Describe the three components that make up a structure of an atom including their charge and specific locations within the atom you may draw a picture if you would like to support your answer
The three components that make up the structure of an atom are protons, neutrons, and electrons.
1. Protons: Protons are positively charged particles found within the nucleus of an atom. They have a charge of +1 and a mass of approximately 1 atomic mass unit (u). Each element has a unique number of protons in its nucleus, known as the atomic number, which determines the identity of the element.
2. Neutrons: Neutrons are neutral particles found within the nucleus of an atom. They have no charge or a charge of 0 and a mass of approximately 1 atomic mass unit (u). The number of neutrons in an atom can vary, forming isotopes of the element.
3. Electrons: Electrons are negatively charged particles that revolve around the nucleus in electron shells or energy levels. They have a charge of -1 and a significantly smaller mass than protons and neutrons. Electrons are located outside the nucleus and determine the chemical behavior of the atom. The distribution of electrons in the energy levels is not fixed and can vary depending on the atom's electron configuration.
Here is a simplified diagram representing the structure of an atom:
```
Nucleus
(contains protons and neutrons)
|
|
- - - - -
| |
| |
Energy Electrons
Levels (revolving around the nucleus)
```
Please note that the actual arrangement of electrons within energy levels is more complex and follows specific rules. This simplified diagram only provides a basic understanding of the components of an atom.
What are the following words from smallest to largest and your answer just write the letters in order a so B organ C electron D molecule e organism F atom G tissue H element I organ system J Macromolecule
The words from smallest to largest are:
C electron
H element
F atom
J macromolecule
D molecule
G tissue
B organ
I organ system
E organism
A cell
Water is awesome Define this claim with evidence and reasoning by describing three of its properties to make it awesome
Water is indeed awesome due to its unique properties that make it essential for life and a multitude of other applications. Here are three key properties of water that support this claim:
1. Universal solvent: Water is often referred to as the "universal solvent" because it has the ability to dissolve a wide range of substances. This property is essential for biological processes as it allows for the transport of nutrients, chemicals, and waste products within living organisms. It also facilitates the breakdown and absorption of nutrients during digestion.
- Evidence: Water can dissolve various salts, sugars, gases, and many organic compounds. For example, it dissolves important biomolecules such as proteins, carbohydrates, and nucleic acids within cells. Water's solvent properties also make it suitable for many industrial and laboratory processes.
2. High heat capacity: Water has a high heat capacity, meaning it can absorb and release a significant amount of heat energy before its temperature changes. This property allows water to regulate temperature and stabilize the environment, making it crucial for maintaining life.
- Evidence: Water's high heat capacity is evident in its ability to moderate the temperature of aquatic environments. Oceans, lakes, and rivers serve as heat sinks, absorbing and storing heat during the day and releasing it at night. Additionally, water's high heat capacity makes it an effective coolant in industries and various cooling systems.
3. Cohesion and surface tension: Water molecules exhibit strong cohesive forces due to hydrogen bonding, causing them to be attracted to each other. This property results in surface tension, which allows some insects to walk on water and helps plants transport water from their roots to their leaves against gravity through capillary action.
- Evidence: The formation of water droplets is a clear demonstration of cohesion and surface tension. When water is spilled or forms droplets on a surface, it holds together due to the strong intermolecular forces between water molecules.
These properties of water make it an extraordinary substance that supports life, facilitates various chemical reactions, and plays a vital role in numerous natural and industrial processes.
It's available the body will always digest which macromolecule for energy first a lipids B proteins C enzymes D chiarbon dehydrates
The body will typically digest carbohydrates for energy first, before digesting other macromolecules such as lipids or proteins.
Carbohydrates, which include sugars and starches, are the primary source of energy for the body. They are broken down into glucose during the process of digestion and are readily utilized by cells for energy production. Glucose is easily transported through the bloodstream and can be readily metabolized to provide energy for various bodily functions.
While lipids and proteins can also be used for energy, the body typically relies on carbohydrates as the preferred source. Lipids, such as fats and oils, are usually stored in adipose tissue and used as a long-term energy reserve. Proteins, on the other hand, are primarily used for other functions in the body, such as building and repairing tissues or serving as enzymes or hormones.
Therefore, in terms of energy metabolism, carbohydrates are the macromolecules that are digested and utilized first by the body.